Tohoku Mathematical Journal
2000
September
SECOND SERIES VOL. 52, NO. 3

Tohoku Math. J.
52 (2000), 321-329

Title PERIODIC SOLUTIONS FOR DISSIPATIVE-REPULSIVE SYSTEMS

Author Tassilo Küpper, Yong Li and Bo Zhang

(Received November 11, 1998, revised August 23, 1999)
Abstract. It is proved that every dissipative-repulsive periodic system admits a periodic solution, which is comparable with some well-known results due to Yoshizawa, Hale and Lopes, and Burton and Zhang for dissipative systems.

1991 Mathematics Subject Classification. Primary 34C25; Secondary 34K15.
Key words and phrases. Dissipative-repulsive system, periodic solution, Brouwer degree.

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